CN1038054C

CN1038054C - Draw for spinning machine

Info

Publication number: CN1038054C
Application number: CN94119202A
Authority: CN
Inventors: R·艾伯哈特; H·米勒
Original assignee: SKF Textilmaschinen Komponenten GmbH
Priority date: 1993-12-24
Filing date: 1994-12-23
Publication date: 1998-04-15
Anticipated expiration: 2014-12-23
Also published as: CN1112967A; JPH07216665A; JP2614596B2; DE4344402A1; DE4344402C2; CH691383A5

Abstract

In the body of the rocking frame 13 receiving the upper roller of the drawing device for spinning machine, a range of supporting and guiding the upper roller and a range of supporting a pressure spring are manufactured of the plastic material having shape stability. A holding member 20, which is integrated into the rocking frame body in order to hold an upper roller shaft within a supporting recess 18 designed to outwardly open, is manufactured of another more elastic plastic material without affecting the ranges of supporting and guiding functions.

Description

The drafting system of fine spining machine

The present invention relates to the drafting system on a kind of fine spining machine.

A kind of like this device is disclosed in DE-PS2106092, wherein, in order to install roller shaft with the fixing bearing opening under shed of top roller be with one overcome spring force and movably clamping element partly seal.This application people has successfully used guide rod to top roller, and wherein, guide body is made by plastic material fully, and guide body is an integral body.In addition, also may reasonably make guide rod.Its superiority reduces owing to require that special clamping element is set on guide body.Yet, on guide rod, still needing the fixture of top roller, this fixture must be able to be dismantled, so that make top roller do subsequent treatment or replacing easily, and can also make guide rod avoid damage.

The objective of the invention is to, establish the fixedly safeties of a top roller on the guide rod that is used for the drafting system top roller that is made of plastics, it does not have bad influence to other functions of guide rod, and low cost of manufacture.

According to the present invention, a kind of drafting system of fine spining machine is provided, has a top roller support, wherein be provided with slide plate, on the free end of slide plate, be provided with a guide rod in order to the guiding top roller, it has a dead eye that opens wide at least downwards, in order to install roller shaft, and on described guide rod, be provided with at least one and can revolt the clamping element that elastic force moves in the open position of dead eye, in order to partly to seal the opening that opens wide of dead eye, the body of described guide rod is made of plastic, clamping element is made of plastic equally, and, it is characterized in that clamping element and be used for being delivered to spring pressure on the top roller and the bearing dividing plate of supporting and guiding top roller separates mutually with the body integrator of guide rod.

The same available plastics of clamping element constitute, and its physical property can be different with the plastics of guide body, and other functional parts of it and guide rod separate and are an integral body with guide body, make simple in structure and keep rational guide rod manufacture method.In view of the physical property of working of plastics, can come the selection of material according to the main purpose of guide rod fully, make it have rolling bearing, directed parallel part and side guiding part that enough intensity is transmitted the pressure of loading spring and installed roller.Clamping element also can adopt same material, makes it have the characteristic of fastening spring by moulding.But the plastics of clamping element especially must have enough elasticity in view of its function, thereby will do special selection, promptly guarantee clamping element energy distending or elasticity bending, and not having the danger of fracture, or the fast tired danger of its spring performance is so that make top roller can put into guide rod or take out from guide rod.Clamping element does not need special guiding or supporting position.Thereby it can be located plastic material spray on guide body with another and form.But clamping element also can have special structure, then, for example is fixed on the plastic guides body in the preformed installing hole with bonding or welding method.Can say so a kind of clamping element of integral body of above-mentioned dual mode.

To elaborate by means of two embodiments of accompanying drawing below to the guide rod that constitutes by the present invention with whole clamping element, wherein:

The part side view of drafting system middle top roller frame on Fig. 1 fine spining machine has two loading elements that are installed in the roller frame;

One of Fig. 2 is in order to install the detailed view of the hinged movably guide rod of roller and same slide plate;

The guide rod profile that Fig. 3 III-III line in Fig. 2 is dissectd;

Fig. 4 is equivalent to the side view of Fig. 2, but the structure difference of guide rod.

Fig. 1 represents to have the part longtitudinal view of the upper roller frame 10 of U-tee section, is shaped as the loading element of the known type of slide plate 11 at the downside of its unlatching two identical its of structure of packing into, and removably fixing with adjustment screw 12.Following free end at slide plate 11 respectively has a guide rod 13, and it can wind the axle 14 that extends transverse to upper roller frame 10 and rotate.Described guide rod 13 is in order to two top rollers of drafting system of expression not in the installation diagram.Be located in the slide plate 11 and act on that helical compression spring on the guide rod 13 stretches out guide rod 13 go up guiding convex shoulder 16.For the sake of clarity, this spring does not give expression in Fig. 1.The longitudinal axis of straight line 17 these helical compression springs of expression shown in the figure.

Fig. 2 and Fig. 3 represent guide rod 13 and guiding convex shoulder 16 thereof separately, and for Fig. 1, represent with the ratio of amplifying, the side view of Fig. 2 is represented the shape of guide rod dead eye 18, according to Fig. 3, it is made up of two of the guide rod 13 bearing dividing plate 19 of determining, and spools 15 of two top rollers of expression can not pack into from the bottom among the figure.Axle 15 in dead eye 18 by two be arranged between two bearing dividing plates, the sidewall 20 of its free end turning-in obtains insurance, these two sidewalls 20 have constituted clamping element jointly.When top roller being packed into guide rod 13 or when taking out from guide rod 13, these two sidewalls can elastic bending, but does not influence the supporting and the guiding function of bearing dividing plate 19.

Whole guide rod 13 is made of plastics.The major part of guide rod 13 comprises that its guiding convex shoulder 16 and bearing dividing plate 19 thereof are to be made by the plastics stable and that can load that are shaped.Clamp sidewall 20 and also can make (Fig. 2) by identical plastic material.But it also can have bigger flexible plastic material by another kind and make (Fig. 3), so that clamp sidewall 20 flexibly distending or bending in all cases, and do not have the danger of fracture and the danger of elastic fatigue, so that with pack into bearing portion or from guide rod 13, take out of the axle of top roller.

In Fig. 2 and guide rod 13 shown in Figure 3, clamping sidewall 20 is to be injected on the body of guide rod 13 by different composites.Guide rod shown in Figure 4 13 ' embodiment in, two clamping sidewalls 20 ', 20 " and with bridge shape parts 21 that their link to each other to constitute a clip be prefabricated into by the bigger plastic material of elasticity separately; pack into together in the suitable hole that is shaped in advance on guide rod 13 ' body with bridge shape parts 21 then, and tighten together by bonding, welding or by the identical engagement of shape.In above-mentioned two kinds of embodiment, elasticity clamping sidewall 2G all can close as a whole with guide body, and can obviously not increase guide rod 13 and 13 ' manufacturing cost.

Claims

1. the drafting system of fine spining machine, has a top roller support (10), wherein be provided with slide plate, on the free end of slide plate, be provided with a guide rod (13 in order to the guiding top roller, 13 '), it has a dead eye (18) that opens wide at least downwards, in order to install roller shaft (15), and on described guide rod, be provided with at least one and can revolt the clamping element (20) that elastic force moves in the open position of dead eye (18), in order to partly to seal the opening that opens wide of dead eye, the body of described guide rod is made of plastic, clamping element (20) is made of plastic equally, and, it is characterized in that clamping element (20) and be used for being delivered to spring pressure on the top roller and the bearing dividing plate (19) of supporting and guiding top roller separates mutually with the body integrator of guide rod.

2. drafting system as claimed in claim 1, it is characterized in that clamping element (20) is by two elastic arms (20 ', 22 ") form; they partly surround top roller axle (15) but and when pack into and takes out top roller their distendings; elastic arm (20 ', 20 ") is located at two and is used for being delivered to spring pressure on the top roller and supporting and guide between the bearing dividing plate (19) of top roller.

3. drafting system as claimed in claim 1 is characterized in that clamping element (20) made by plastic material, and its physical characteristic is with the plastics difference of guide body other parts.

4. as the described drafting system of one of claim 1-3, it is characterized in that the clamping element that is made of two elastic arms (20 ', 20 ") and the bridge shape parts (21) that are connected them is prefabricated separately, the guide rod (13 ') of packing into is securely then gone up at least one installing hole.

5. as the described drafting system of one of claim 1-3, it is characterized in that clamping element (20) is to form in the plastic body of guide rod (13).